Question: Let x and y distinct vectors in Rn with ||x||2 = ||y||2.Define Show that (a) ||x-y||22 = 2(x-y)Tx (b) Qx = y (x-y) and Q=1-2uuT

Let x and y distinct vectors in Rn with ||x||2 = ||y||2.Define

Let x and y distinct vectors in Rn with ||x||2

Show that
(a) ||x-y||22 = 2(x-y)Tx
(b) Qx = y

(x-y) and Q=1-2uuT x yllz

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